Cohn, P.M. <br/><br/>
Introduction to Ring Theory 
/ by P.M. Cohn 
 - New delhi:  springer,  2000. 
 - x, 229p. 
<br/><br/><label>ISBN: </label>9788184899696 
<br/><br/><label>Dewey Class. No.: </label>512.4  / COH/I